Durable materials: High-quality ABS construction with polished edges and metal parts designed for long-lasting use in educational settings. Provides safe, hands-on learning with impact-resistant components. Fast assembly: Intuitive plug-in system enables immediate building enjoyment while developing technical understanding and procedural skills in children. Crank-based energy visualization: Hand-crank mechanism demonstrates the function of magnetic fields, making energy conversion visible and supporting practical understanding of electromechanical principles. Multifunctional use: A practical learning tool for basics of power generation and lamp operation. The hand crank provides reliable results for energy-conversion tests in variable environments. Use scenarios: - In-class demonstrations to explain generators, energy flow, and basic electrical principles; students assemble and observe crank-driven output with different loads. - After-school STEM sessions conducting energy-conversion experiments and lamp-operation tests, comparing outputs at varying crank speeds. - Home or makerspace projects for exploring electricity and magnetism with a portable, durable educational device.